Background Just a note, this is my first Blender Tutorial! This may be overkill, but one of the things I find tedious to create are windows. They have a surprising number of fiddly details, whether they are old fashioned 1920s single hung windows, or even relatively recent single paned commercial windows with metal trim. What if one could simply define the height, width, and number of panes in the windows? We’re going to accomplish this with geometry nodes.

Blender Version: 4.2 Introduction / Credits I really enjoyed Kent Trammell’s geometry nodes buildings in the CGCookie Cubicity Course, as well as Jonathan Lampel’s dive into Geometry nodes in CGCookie’s Assemble course. This page will use a lot of Kent’s approach to creating buildings, but I’m using it for more realistic structures. With the correct materials the structures could look realistic or cartoony. Planned Plugin Use Aside from some of the standards, like Node Wrangler, I believe the following plugins will be helpful:

Credits: These notes are based off of the Core Tutorials on the CGCookie website. This is the Materials Core class. Instructor: Ewa Wierbik-Ziąbka Notes: The instructor includes a number of downloaded .blend files. I haven’t checked them all out, but several of them seem to go well beyond the basics covered in the course and they’re definitely worth checking out to see how she achieved some of the effects. Simple Shaders Glossy BSDF Creates glossy or metalic surfaces Roughness A roughness 0 creates a perfectly reflective surface Anisotropy 0 is no anisotropy Negative values elongate values along tangent Positive values elongate along normal tangent Rotation 0 is no rotation 1 is 360 rotation Diffuse Shader Only has roughness slider(Fresnel) Light bounces in random directions Emission Emits light Can adjust color and strength Can create whole objects that light up, like Neon, or a glowing Suzanne head When strength is set very high, the light will appear white, while reflections will show the color of the light Transparent Pure white and the object can be completely transparent The darker the color, the less transparent the object is Holdout shader The object is not very transparent, but it asks like a mask Great for compositing If you change the scene background to transparent, it will create an alpha where the object is Mix shader Diffuse and Glossy are a typical combination Except for metal, the color for glossy should typically be white Diffuse is where you set the color, and get a plastic like material Factor controls which shader has a larger effect 0 for Slot A and 1 for Slot B Layer weight This is not a shader, but an Input Plug Fresnel or Facing into the mix shader factor Fresnel Dependent between normal and viewing angle Facing Blends between first and second shader based on viewing angle Add shader If you add two glossy shaders you may end up with reflections that are stronger than the source light This is not accurate This will look strange This is mostly used for emission or volume shaders It is also used to add diffuse and glossy for ceramics Refraction Shader Alone you get dark results near the edges - it almost looks like a toon shader Refraction is often mixed with glossy The sharpness of the refractions is controlled by the roughness of the glossy The amount of light that passes through the object is controlled by the roughness of the refraction shader Color is usually controlled by the refraction shader The glass shader may be more realistic than this combination Translucent Created for thin objects like leaves or paper Often mixed with diffuse With diffuse as the first shader, generally make .

These notes are based off of The Observatory’s YouTube Tutorial. I can’t speak to earlier versions of Blender, but with Blender 3.6 these instructions are no longer needed. The Image Texture supports both Image Sequences and animating the Offset value. One may add an Image Texture Node Choose a numbered range of images Set the Frames to 1 Insert Keyframes for the Offset value to animate the texture. Note: Image Sequence Nodes are no longer available or needed.